Tutorial by Examples: n

Creating a new cron on ubuntu (or most other linux os)

You can create a new cron entry by simply typing crontab -e on the command line. If it's the first time you want to edit your crontab(le), you will be prompted with an editor selection: no crontab for <user> - using an empty one Select an editor. To change later, run 'select-editor'. ...

crontab • Getting started with crontab

Deploying sample application using Spring-boot in Jar format on AWS

Create a sample application using spring-boot from spring-boot initializer site. Import the code in your local IDE and run the goal as clean install spring-boot:run -e Go to target folder and check for the jar file. Open your Amazon account or create a new Amazon Account and selec...

spring-boot • Deploying Sample application using Spring-boot on Amazon Elastic Beanstalk

If points field value is greater than 10 then display good else average

We have a set of data We would like to see by using the following expression in the detail textbox. we can achieve the Remark =IIF(Fields!Points.Value>=10,"Good","Average")

reporting-services • IF expression

Getting type and names of properties for a class without having to instantiate it

Using the Swift class Mirror works if you want to extract name, value and type (Swift 3: type(of: value), Swift 2: value.dynamicType) of properties for an instance of a certain class. If you class inherits from NSObject, you can use the method class_copyPropertyList together with property_getAttrib...

Swift Language • Reflection

create .ipa file to upload app to appstore with Application Loader

If you want to upload .ipa file to itunesconnect without integrating developer account in Xcode and you want to use application loader. then you can generate .ipa with iTunes . Step 1 :- Select device inplace of simulator. Step 2 :- Go to Product -> select Archive Step 3 :- After complited...

iOS • Create .ipa File to upload on appstore with Applicationloader

Catch-all route for enabling client-side routing

It's a good practice to encode state of Single Page Application (SPA) in url: my-app.com/admin-spa/users/edit/id123 This allows to save and share application state. When user puts url into browser's address bar and hits enter server must ignore client-side part of the requested url. If you serv...

asp.net-mvc • Routing

React Component Container

When building a React application, it is often desirable to divide components based on their primary responsibility, into Presentational and Container components. Presentational components are concerned only with displaying data - they can be regarded as, and are often implemented as, functions tha...

React • React Component Lifecycle

Open Local File / Create dynamic content in Webview

Layout.xml <WebView android:id="@+id/WebViewToDisplay" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_gravity="center" ...

Android • WebView

Connecting with Microsoft Cognitive Services

In this example you will learn how to use Microsoft Cognitive Services with Xamarin iOS mobile application. We will use Computer Vision API to detect what is in the picture. Once you create Xamarin.iOS project please add below NuGet package to the project: https://www.nuget.org/packages/Microsoft....

Xamarin.iOS • Connecting with Microsoft Cognitive Services

Pig countdown list

<ul> <li v-for="n in 10">{{11 - n}} pigs are tanning at the beach. One got fried, and </ul> https://jsfiddle.net/gurghet/3jeyka22/

Vue.js • List Rendering

The Naive First Attempt

Before we begin, let's define some CSS for the examples. This is the head section of our sample. I always use border-radius and background-color when I'm testing, because it makes seeing cell divisions simple without adding any border size which could affect the size of the cells. <head> ...

twitter-bootstrap • Using Clearfix in Rows and Cols

Unit Test with Parameters using NUnit and C#

using NUnit.Framework; namespace MyModuleTests { [TestFixture] public class MyClassTests { [TestCase(1, "Hello", true)] [TestCase(2, "bye", false)] public void MyMethod_WhenCalledWithParameters_ReturnsExpected(int param1, string para...

unit-testing • Getting started with unit-testing

Debug Cordova apps using GapDebug

https://www.genuitec.com/products/gapdebug/ GapDebug is a comprehensive mobile debugging tool that bridges the gap left by other debugging options. Operating on both the Windows and Mac platforms, GapDebug allows debugging of hybrid mobile apps, such as PhoneGap and Cordova, on modern iOS and Andro...

Cordova • Debugging the application

Find nearby Bluetooth Low Energy devices

The BluetoothLE API was introduced in API 18. However, the way of scanning devices has changed in API 21. The searching of devices must start with defining the service UUID that is to be scanned (either officailly adopted 16-bit UUID's or proprietary ones). This example illustrates, how to make an A...

Android • Bluetooth and Bluetooth LE API

Setting Buildpacks

Heroku officially supports buildpacks for Ruby, Node.js, Clojure, Python, Java, Gradle, Grails, Scala, Play, PHP and Go. Buildpacks are automatically detected by Heroku in the above order, however, it can also be set manually through CLI using: At the time of app creation heroku create <a...

heroku • Buildpack

Access Camera and Gallery.

(Access Code)[https://github.com/vDoers/vDoersCameraAccess]

Xamarin.Forms • Dependency Services

Accessing a UI Element From Within a Task

All UI elements created and reside in the main thread of a program. Accessing these from another thread is forbidden by the .net framework runtime. Basically it is because all UI elements are thread sensitive resources and accessing a resource in a multi-threaded environment requires to be thread-sa...

wpf • Thread Affinity Accessing UI Elements

Join

Join(Fields!Parameter_Name.Value, ", " )

ssrs-2008-r2 • Display multi-select parameters in report.

Deployment using PM2

PM2 is a production process manager for Node.js applications, that allows you to keep applications alive forever and reload them without downtime. PM2 also enables you to manage application logging, monitoring, and clustering. Install pm2 globally. npm install -g pm2 Then, run the node.js app u...

Node.js • Deploying Node.js applications in production

Deployment using process manager

Process manager is generally used in production to deploy a nodejs app. The main functions of a process manager are restarting the server if it crashes, checking resource consumption, improving runtime performance, monitoring etc. Some of the popular process managers made by the node community are ...

Node.js • Deploying Node.js applications in production